

InterviewSolution
Saved Bookmarks
1. |
12 + 1 + 22 + 2 + 32 + 3 + 42 + 4 + …………………… + n2 + n =A) \(\cfrac{n(n+1)(n+2)}3\)B) \(\cfrac{n(n+1)}2\)C) \(\cfrac{n(n+1)(n+2)(n+3)}4\)D) \([\cfrac{n(n+1)}2]^2\) |
Answer» Correct option is A) \(\cfrac{n(n+1)(n+2)}3\) |
|